1/* 2 * Copyright 2017, Data61 3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO) 4 * ABN 41 687 119 230. 5 * 6 * This software may be distributed and modified according to the terms of 7 * the BSD 2-Clause license. Note that NO WARRANTY is provided. 8 * See "LICENSE_BSD2.txt" for details. 9 * 10 * @TAG(DATA61_BSD) 11 */ 12 13#pragma once 14 15#include <sel4/types.h> 16#include <assert.h> 17#include <autoconf.h> 18#include <sel4vka/gen_config.h> 19#include <utils/util.h> 20 21enum _x86_mode_kobject_type { 22 KOBJECT_PML4, 23 KOBJECT_PDPT, 24 KOBJECT_FRAME, 25 KOBJECT_MODE_NUM_TYPES, 26}; 27 28typedef int kobject_t; 29 30/* 31 * Get the size (in bits) of the untyped memory required to 32 * create an object of the given size. 33 */ 34static inline seL4_Word x86_mode_kobject_get_size(kobject_t type, seL4_Word objectSize) 35{ 36 switch (type) { 37 case KOBJECT_FRAME: 38 switch (objectSize) { 39 case seL4_HugePageBits: 40 return objectSize; 41 default: 42 return 0; 43 } 44 case KOBJECT_PDPT: 45 return seL4_PDPTBits; 46 default: 47 ZF_LOGE("Unknown object type"); 48 return 0; 49 } 50} 51 52static inline seL4_Word x86_mode_kobject_get_type(kobject_t type, seL4_Word objectSize) 53{ 54 switch (type) { 55 case KOBJECT_FRAME: 56 switch (objectSize) { 57 case seL4_HugePageBits: 58 return seL4_X64_HugePageObject; 59 default: 60 return -1; 61 } 62 case KOBJECT_PML4: 63 return seL4_X64_PML4Object; 64 case KOBJECT_PDPT: 65 return seL4_X86_PDPTObject; 66 default: 67 /* Unknown object type. */ 68 ZF_LOGE("Unknown object type %d", type); 69 return -1; 70 } 71} 72 73